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Fig. 1 | Health and Quality of Life Outcomes

Fig. 1

From: Development of a novel patient reported outcome measure for health-related quality of life in amyotrophic lateral sclerosis (PROQuALS): study protocol

Fig. 1

Overview of project. ALSAQ-5 = Amyotrophic Lateral Sclerosis Assessment Questionnaire; ALSFRS-R = Revised Amyotrophic Lateral Sclerosis Functional Rating Scale; CAG = Clinical Advisory Group; CTT = Classical test theory; DCE = Discrete choice experiment; IRT = Item response theory; PAG = Patient Advisory Group; PlwALS = People living with ALS; PROQuALS = Patient Reported Outcome measure of Quality of life in Amyotrophic Lateral Sclerosis; PROM = Patient reported outcome measure; PWM = Preference-weighted measure; QuALS = Health-related quality of life in amyotrophic lateral sclerosis

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